Convertible type bowl and liner for gyratory crushers



E. WERNER 2,684,208

CONVERTIBLE TYPE BOWL. AND LINER F'OR GYRTORY CRUSHERS July 20, 1954 2Sheets-Sheet l Filed Oct. 27 1950 July 20, 1954 E. WERNER 2,684,208

CONVERTIBLE TYPE BOWL AND LINER FOR GYRATORY CRUSHERS Filed Oct. 27,1950 2 Sheets-Sheet 2 g E l l' snug" W im 1 AS S3 Inveiezof jaaa/a7Wer/762" Patented July 20, 1954 CONVERTIBLE TYPE BOWL AND LINER FORGYRATORY CRUSHERS Ewald Werner, Milwaukee, Wis., assigner to NordhcrgManufacturing Company, Milwaukee, Wis., a corporation of WisconsinApplication October 27, 1950, Serial No. 192,537

5 Claims.

My invention relates to improvements in bowl and concave structures forgyratory Crushers and has for one purpose to provide a bowl to whichliners or replaceable crushing members of various types and dimensionscan be applied.

Another purpose is to provide a bowl structure, for gyratory Crushers,to which bowl liners of different transverse or vertical dimensions maybe applied.

Another purpose is to provide an improved adapter or securing member ormembers for use in securing bowl liners to the bowl of a gyratorycrusher.

Another purpose is to provide a bowl for gyratory crushers to whichliners may be quickly and easily applied.

Another purpose is to provide a bowl which will render the applicationof zinc, lead or backing metal to the liner easy and safe.

Another purpose is to provide a bowl structure in which the lead ormetal backing of the liner is not merely more easily applied, but has alonger life, and provides better constraint.

Another purpose is to provide a self-tightening bowl liner.

Another purpose is to provide a bowl liner involving a simplied foundryprocedure.

Another purpose is to provide a bowl liner with which no zinc level hasto be observed at the time of zinc pouring.

Other purposes will appear from time to time in the course of thespecification and claims.

The invention is illustrated more or less diagraminatically in theaccompanying drawings, wherein:

Figure l is a vertical axial section;

Figure 2 is a partial plan view of on an enlarged scale of the bowl andliner structure shown in Figure 1;

Figure 3 is a section on an enlarged scale on the lines 3-3 of Figure 2;

Figure e is a section on an enlarged scale on the lines 4 4 of Figure 2;

Figure 5 is a perspective View of a locking member; and

Figure 6 is a partial vertical axial section on an enlarged scaleillustrating a different form of bowl liner and adapter or securingring.

Like parts are indicated by like symbols throughout the specificationand drawings.

Referring to the drawings, I generally indicates any suitable base orfoundation to which gyratory crusher may be secured, the foundationincluding a space '2 into which a lower part of the crusher may extend.3 indicates a cir- (Cl. 21H-207) cumferential crusher main frame havinga bottom flange 4 and a top flange 5. The top flange 5 is shown ashaving an inner conic surface 6, an outer conic surface l, an uppergenerally horizontal, generally plane surface 8, and an externallygenerally cylindrical surface 9. The result is the provision of aninwardly and outwardly beveled ring, the purpose of which will appearlater. l is a central xed sleeve connected to the circumferential framemember 3, for example by spider or radial elements II. The sleeve I c isupwardly and outwardly expended at its upper end as at I2 to provide agear receiving space I3. The upper end of the sleeve proper extendsupwardly therein as at I4. Any suitable cylindrically surfaced liner Imay be provided.

Rotatable within the cylindrical sleeve I9 is the eccentricallyapertured sleeve IS, which has an aperture Il eccentric to and inclinedin relation to the axis of the sleeve I6. i8 is any suitable wear-takingliner for the eccentric aperture il of the sleeve I6. I3 is a gear keyedor otherwise secured to the upper end of the sleeve I6. The gear It isin mesh with the bevel pinion on the outer shaft 2 I, which carries atits outer end the drive pulley 22, channeled as at 23 to receive anysuitable driving elements extending to a source of power not hereinshown. lt will be understood that when the countershaft 2i is rotated,it rotates the eccentrically apertured sleeve I6.

The countershaft 2I is shown as mounted in a housing element generallyindicated as y24. Adjacent its outer end is a plate portion 25 whichinterts with an outer enlargement 26 of the circumferential frame member4. Any suitable bearings 2l, 28 are provided for the countershaft 2|,each being in the form of a sleeve with an end flange. The inner end ofthe member 24 is enlarged, as at 29, to interlit with a side enlargement30 of the fixed sleeve I6. The housing 24 is formed to drain oil backtoward the inner end of the shaft 2 I. Unitary with the sleeve i@ is theoil discharge duct 3I, which, through any suitable elbow 32, may beconnected with the return side of any suitable oil pump not hereinshown.

Extending into the eccentric aperture I 'l is the Crusher shaft 35. Itwill be noted that the shaft t5 is tapered downwardly at its lowerportion and seats within an anti-frictional sleeve i8. The result of therotation of the sleeve I6 is the gyration of the shaft about the fulcrumX, the point at which the axis of the aperture I1 and the axis of theexterior surface of the sleeve i intersect.

Mounted on an upper portion of the shaft is the Crusher head St. Anupper portion 36a of the head 3e surrounds and engages an upper portion35a of the shaft 35. The upper end of the shaft 35a ends in anexternally screw-threaded portion 35h. 3l is any suitable closure forthe space I3, which is shown as resting upon the upper edge of theenlargement l2 and it is provided with a wear-taking socket 38 having agenerally spherical concave upper surface adapted to receive acorresponding inwardly convex bearing surface of the head 3S. Thus thehead 35, resting upon the socket 36, gyrates with the shaft t5 above thecenter.

Any suitable sealing means may be employed, the details of which do notform part of the present invention. I illustrate, for example, theupwardly spring-thrust sealing ring or assembly dil having parts opposedto circumvent inwardly extending lugs or flanges 4I formed on the lowerinner surface of the head 36.

55 is any suitable mantle shown as resting upon any suitable metalbacking 46 on the conic outer surface of the head 36. The mantle isengaged at its upper inner edge by a compression member or sleeve lislidable on an intermediate part 35e or" the Crusher shaft. The head isheld in downward position by a combined counterweight and nut generallyindicated at 5). The member Sie has a lower portion ella inwardlyscrewthreaded to mesh with the threads of the shaft portion 35h. Adistributing plate 5I is secured to the upper surface of the nut or seattil, for example by bolts 52. The member 5i is itself of substantialmass and its weight, together with that of the nut 5E?, provides asubstantial counterbalancing of the head and shaft 35 below the centeror fulcrum X.

tl generally indicates a bowl supporting ring supported on or normallyxed on the upper flange 5 of the circumferential frame member 3. it iscircumferentially recessed to conform to the exterior shape of theflange 5, as will be clear from Figure l. lit is normally held xed inrelation to the main frame by the employment of the spring abutment ring6I. The ring 6% is normally yieldingly held in the position in which itis shown in Figure l by the springs 61B. These springs are kept undersufficient compression to resist normal crushing stresses, whileyielding to permit the passage or unorushable material. The springs abutat their lower ends the upper surface of the compression ring Gi. Thering is suspended by the bolts 62, headed as at 62a., which extenddownwardly through any suitable apertures 63 in the outer edge of thering Sil. The ring te is held against unintended lateral movement inrelation to the iiange 5 by the upwardly extending positioning pins 6d,shown as having more or less tapered heads te extending into aperturest@ of the ring Bil. The members 6i nay be dropped into suitableapertures 6l in the flange The springs G3 are under compression betweenthe abutment ring Sl and the lower surface of the flange 5. if desired,an upper abutment ring 69 may be employed, apertured to permit thepassage of the bolts or tension members 62E. It will be understood thatthe particular spring means employed do not of themselves form part ofthe present invention and I may employ either continuously extendingrings or nests or segmental elements to receive the spring E8.

By the above-described structure or some other suitable structure, thering 59 is normally held against movement in relation to the main frame3, but is free to tilt slightly if uncrushable material passes throughthe crushing zone.

`Adjustable in the ring @t is the bowl structure generally indicated asit. It includes a generally cylindrical outer member "u l, externallythreaded as at i2 to mesh with the internal threads 'i3 of the ring SD.It has also a generally conio inwardly and upwardly extending componentextending from the lower edge of the outer or cylindrical component ll.The bowl structure may have external lugs, as at l5, to receive anyouter housing element 56, which is sealed as at 'il' to prevent theentry of dust about the exterior of the hopper or guide i8, which restson the upper edge of the bowl ll. Any suitable seal l may be employedbetween the lower portion of the ring @il and the lower outer surface ofthe bowl.

Sil generally indicates a bowl liner which is shown as having a lowersurface 8i in metal to metal contact with the opposed lower upwardly andinwardly conic surface Bia of the bowl lil. The inner surface of thebowl portions 'irl is provided with threads or wedging surfaces ldd. Theupper edge of the bowl liner is provided with outwardly extending lugsSd. Extending between the upper inner surface of the bowl portions 'l'lland the outer surface of the bowl liner BQ is a locking or adapter ringElli. It is provided with external threads or wedging surfaces elle.opposed to the corresponding inwardly extending surface Ella of the bowlportions iii. It has inwardly extending lugs 9th opposable to the lowersurface of the outwardly extending lugs Bilo of the bowl liner 86. Itwill be understood that when, as in Figure 2, the lugs @lib and elle arealigned, rotation of the adapter ring di), in relation the the bowlportion i, is effective to draw the bowl liner gli upwardly against theopposed inner surface of the bowl portion l2. Relative rotation of thebowl liner 823 and the adapter ring S may be prevented by any suitablelocking means, such as the locking block shown for example at 9'5 inFigures 2 and 5.

When the bowl liner il@ is properly position-ed, the free space betweenthe outer surface of the liner and the inner surface of the bowl portionT4 is upwardly open at a plurality of points as at Se in Figure 2,providing ample pouring space for pouring lead or any suitable backingmetal A into the sp-ace between the two members. For ease in tightening,the adapter ring Si? is shown as having upwardly extending lugs siilc towhich any suitable tool may be applied. rEhe prongs lc are preferablyunevenly spaced to assure ready engagement of a suitable bar beyond theprongs llc and the evenly spaced bowl ribs 5dr. rihis is in relation tothe barring purpose of tightening the ring regardless of its position inrelation to the bowl. In other words, at any position of the bowl liner,the operator can engage a bearing for prying the ring de.

Assume that it is desired to employ the saine bowl with bowl liners ofdifferent contours. This may readily be done by merely changing theshape of the adapter ring. Figure 6 illustrates a structure in which aso-called short head cone crushei` is employed with a head and bowl andmantle shaped quite differently from those shown in Figure 1. The shorthead member itt carries a relatively short mantle lill held in positionfor example by any suitable locking or thrust ring |612. The bowl partsshown in Figure 6 are identical with those of Figure l. However, anadapter ring l e5 is employed of very diierent shape from the adapterring 99 of the form of Figures 1 to 4. Since a substantially shorterbowl liner |63 is used with its exterior lugs 193e, the adapter ring lhas at its lower edge inwardly extending lugs |9511. Extending outwardlyfrom its outer face are ridges or wedging surfaces i951) which mesh orcooperate with the inward threads or surfaces lia of the bowl portion H.Whereas the contours or faces of the parts differ, the adapter ring |05operates just like the adapter ring 99 in drawing the bowl liner m3upwardly against the bowl portion 14. The lead or backing material A ispoured in the same manner.

In both forms of the device, any suitable hopper im may be dropped intoposition above the bowl and may be employed to direct the material to becrushed into the crushing cavity between the opposed bowl liner andmantle.

It will be realized that, whereas, I have described and claimed apractical and operative device, nevertheless many changes may be made insize, shape, number and disposition of parts without departing from thespirit and scope of my invention. I therefore wish my description anddrawings to be taken as in a broad sense illustrative or diagrammatic,rather than as limiting me to my speciiic showing herein. For instance,a wide variation in the size and shape of adapter rings and bowl linersmay be employed.

The use and operation of my invention are as follows:

I illustrate herein a universal type bowl in com bination with asimplified self-tightening bowl liner- My bowl structure le, in acrusher of predetermined size or transverse diameter, may be employed totake a wide Variety of shapes or contours of bowl liners. I illustratemy inven tion as applied to a gyratory Crusher with a generally conichead. It is thus not necessary to employ or stock individual bowlelements to take different bowl liners, as has been the past custom withthis type of crusher. The result is that a substantially smaller numberof individual bowl members need be stocked. Also permits a readyconversion to a diierent crushing cavity in the field.

A further advantage of the herein described structure rests in theabove-mentioned combination of the unevenly spaced prongs on the ringSli and in connection with the equally spaced ribs 99x of the bowl. Itsbarring or prying function has already been discussed.

I claim:

l. For use in gyratory crushers, a bowl member having an inner generallyconic component provided with inwardly extending threads at the upperportion thereof, said component being formed and adapted to receive abowl liner at the lower portion thereof, an adapter ring positionedinwardly of said bowl component and having outwardly extending threadsengageable with said first-mentioned threads, said adapter ring havingcircumferentially spaced bowl liner engaging members extending inwardlytherefrom, and upwardly extending adjusting members whereby rotation ofsaid members will adjust the position of said liner with respect to saidbowl component.

2. For use in gyratory crushers, a bowl member having an outer componentand an inner generally conic component extending upwardly and inwardlyfrom a lower portion of the outer component a bowl liner for said bowlmember, said bowl liner having an outer conic portion, the space betweensaid components being upwardly open, said components havingcircumferentially spaced connecting ribs, the upper portion of the innercomponent being inwardly screw-threaded and having, below such threads,a generally conic surface opposable to the outer conic portion of thebowl liner, and an adapter ring having an outwardly extending threadcooperable with the thread of the inner component of the bowl member,said adapter ring having circumferentially spaced inwardly extendinglugs adapted to cooperate with outwardly extending portion of a bowlliner and having also circumferentially spaced upwardly extendingmembers, the circumferential spacing of said members being differentfrom the circumferential spacing of said connecting ribs.

3. For use in gyratory crushers, a bowl member having an outer componentand an inner generally conic component extending upwardly and inwardlyfrom a lower portion of the outer component, the space between saidcomponents being upwardly open, said components having circumferentiallyspaced connecting ribs, the upper portion of the inner component beingprovided with a wedging means, and an adapter ring having an outwardlyextending wedging means cooperable with the wedging means of the innercomponent, said adapter ring having inwardly extending lugs adapted tocooperate with outwardly extending portions of a bowl liner and havingalso circumferentially spaced upwardly extending barring lugs, thecircumferential spacing of said barring lugs being different from thecircumferential spacing of said connecting ribs.

4. For use with gyratory Crushers having a bowl liner, an adapter ringhaving an outer portion thereof provided with screw threads, a pluralityor circumferentially spaced linerengaging members extending inwardlybeyond the remainder of the ring, said members being formed and adaptedto present vertically open and accessible spaces between the members.

5. For use with gyratory crushers, a bowl liner having outwardlyextending circumferentially spaced members at an upper portion thereof,an adapter ring provided with screw threads on an outer portion thereofand a plurality of circumferentially spaced members extending inwardlytherefrom, said inwardly extending members being formed and adapted toengage the outwardly extending members on said bowl liner and providevertically open spaces therebetween.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 1,953,472 Fahrenwald Apr. 13, 1934 2,341,543 Gruender Feb. 15,1944 2,341,544 Gruender Feb. 15, 1944 2,359,987 Gruender Oct. 10, 19442,509,920 Gruender May 30, 1950

